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Mo Arif
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« Reply #1 on: May 23, 2013, 11:26:23 AM »
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Any help would be really appreciated
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k0mpresd
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« Reply #2 on: May 23, 2013, 12:45:06 PM »
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going by the picture of your connector, all the wires you need are there except 1 ignition wire. and ive seen lots of connectors without that wire.
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ddillenger
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« Reply #4 on: May 23, 2013, 01:37:27 PM »
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The colors are irrelevant. I repin all my harnesses so K-line is yellow, power is red, and ground is black. Keeps things simple. You know the pin numbers, you don't need anything else?
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
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Mo Arif
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« Reply #5 on: May 23, 2013, 01:43:34 PM »
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The colors are irrelevant. I repin all my harnesses so K-line is yellow, power is red, and ground is black. Keeps things simple. You know the pin numbers, you don't need anything else?
Hi mate thanks, but even the pin numbers on this ECU plug seem to be different no? |
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oldcarguy85
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« Reply #6 on: May 23, 2013, 01:47:02 PM »
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it "looks" like 2 fat browns are ground, red w/ white strip is +12v, green w/ graysih stripe is K-line. Because of the orientation of the connector, i can't see the main 12v (pin 3) but it would be the fat wire above (below in this pic) the two fat brown wires. It does appear the IGN+ wire is missing, but it could be hidden. Can you flip the connector over and take another picture?
as everyone already mentioned, the colors are irrelevant.
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player
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« Reply #7 on: May 24, 2013, 07:43:15 AM »
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you can use only one "fat brown"..no need for both;) , then u need the no.3 "fat " pin + , pin 43 k and pin 62 igniton .(no need for pin 21 as i didn't used that never and all worked flawless for all me 7.5 ecus i used)
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Mo Arif
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« Reply #8 on: June 06, 2013, 02:27:47 AM »
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it "looks" like 2 fat browns are ground, red w/ white strip is +12v, green w/ graysih stripe is K-line. Because of the orientation of the connector, i can't see the main 12v (pin 3) but it would be the fat wire above (below in this pic) the two fat brown wires. It does appear the IGN+ wire is missing, but it could be hidden. Can you flip the connector over and take another picture?
as everyone already mentioned, the colors are irrelevant.
I've rotated the picture on the hosted site |
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Mo Arif
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« Reply #9 on: June 06, 2013, 02:34:39 AM »
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I know the colors are irrelevant but where I'm getting confused is if you you at the rows of pins in the diagram, pin 21 is on the top row, now if you look at the plug I'm working with there is no pins in the top row, the wires are in the row below if that makes any sense, so should I treat it the same even if there's no wires.
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oldcarguy85
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« Reply #10 on: June 06, 2013, 04:08:17 AM »
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I know the colors are irrelevant but where I'm getting confused is if you you at the rows of pins in the diagram, pin 21 is on the top row, now if you look at the plug I'm working with there is no pins in the top row, the wires are in the row below if that makes any sense, so should I treat it the same even if there's no wires.
If the top row has no wires, your plug is simply missing pin 21. I think others have mentioned that pin 21 isn't always necessary. You could probably move an unused wire to the pin 21 location in your plug, but I'm not sure how to remove the wires from that connector. |
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Mo Arif
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« Reply #11 on: June 06, 2013, 03:35:16 PM »
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If the top row has no wires, your plug is simply missing pin 21. I think others have mentioned that pin 21 isn't always necessary. You could probably move an unused wire to the pin 21 location in your plug, but I'm not sure how to remove the wires from that connector.
Ok so I got the power source working for sure, is it just the 1 wire pin 43 'K-Line' that's needed to transfer the data back and fourth ? |
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Mo Arif
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« Reply #12 on: June 07, 2013, 07:12:36 AM »
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Right lads thanks for all the help, I've got it working without a 1KOhm resistor is that a bad thing? anyway I still have a few questions, I successfully managed to read/flash a Bosch m7.5 ecu, but I've got 2 questions:
1) When I used official registered VCDS to scan the ECU, it only read one part of the ECU, mainly engine fault codes, it didn't read anything else
2) I opened the ECU and located the required chip pin, soldered a wire to it and ground it but still couldn't get the ECU in to boot mode
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oldcarguy85
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« Reply #13 on: June 07, 2013, 07:17:40 AM »
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1) When I used official registered VCDS to scan the ECU, it only read one part of the ECU, mainly engine fault codes, it didn't read anything else
I'm not sure what you mean by reading parts. Can you give more detail? 2) I opened the ECU and located the required chip pin, soldered a wire to it and ground it but still couldn't get the ECU in to boot mode
Can you give the step-by-step procedure you are using? It SHOULD be, hold pin to ground with power off, power up ecu, after about 3 seconds release ground. You should then be in boot mode. |
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phila_dot
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« Reply #14 on: June 07, 2013, 07:37:41 AM »
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Right lads thanks for all the help, I've got it working without a 1KOhm resistor is that a bad thing? anyway I still have a few questions, I successfully managed to read/flash a Bosch m7.5 ecu, but I've got 2 questions:
1) When I used official registered VCDS to scan the ECU, it only read one part of the ECU, mainly engine fault codes, it didn't read anything else
On the bench? If so, of course you can't connect to other modules that aren't attached. |
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